Method of warping



Sept. 19, 1950 H. FIDERER 2,522,816

mmon OF WARPING Filed Feb. 12. 1948 mg! Us um um um an [In Dc! DU Henry Ederer' INVENTOR.

BY W c161- Patented Sept. 19, 1950 METHOD OF WARPING Henry Fiderer, Kiryath Mozkin, Palestine Application February 12, 1948, Serial No. 7,869 In Palestine October 10, 1946 1 Claim.

Warp printed fabrics are known. The pattern is applied to the ready assembled warp threads after they have been given their final order. It is also known to haphazardly include coloured or fancy threads into the warp thereby obtaining a certain irregular pattern in the fabric.

The present invention relates to a new method of obtaining regular patterns in fabric. The new method consists in preparing patterned warps by arranging part of the threads to be used as warps-which threads have been imprinted with coloured dots at regular distances in a previous operationamong plain warp threads, possibly in groups, at regular distances from each other. The colour dots are applied to these threads before they are arranged in the warp either by consecutive printing of the threads by means of small rollers and spooling the threads without altering the, relative position'they assumed during the printing or by any other means known in the art, e. g. by dipping the threads into dye at points regularly spaced from each other, or by spraying.

These threads are arranged singly or in groups and are distributed over the whole length of the warp beam together with unprepared threads in such a manner that all dots on the printed threads appear on the same level in relation to the weft, or in staggered position, or in accordance with any preconceived layout. The positioning of the dots can be determined by a ruler running across the weft, it is achieved by drawing the printed threads to one or another direction, and means are provided for maintaining the relative position of the threads during weaving.

Instead of using threads having regularly spaced colour dots, the desired pattern can be obtained by using knop yarn having knops at regular intervals or by using other fancy yarns and fancy twisted yarns, known in the trade, together with unprepared threads or also combined with printed ones, provided only that the effects, 1. e. the knops, dots or other characteristics repeat themselves at regular intervals on the thread.

The invention will be understood more readily from the following detailed description with reference to the accompanying drawings.

Fig. 1 is an example of the patterns that may be obtained by the invention.

Fig. 2 is a plan view of a device for adjusting warp threads (previously imprinted with dots) to form the pattern shown in Fig. 1.

Fig. 3 shows in a fragmentary plan view a number of reels arranged on a common axle for weaving fabrics according to the invention.

Fig. 4 shows in a schematical way the arrangement of adjusting rollers in relation to a loom the warp beams of which carry plain threads and imprinted ones.

Fig. 5 shows in a schematical way another arrangement of the reels on a loom.

Fig. 6 shows in a schematical plan view the arrangement of a reel carrying the imprinted threads on a loom.

The layout of a pattern according to Fig. 1 is self-explanatory.

According to Fig. 2 this pattern is obtained by unwinding threads from reels 3, 4, which threads are wound on the reels in parallel and on which threads colour dots have previously been imprinted. The dots are applied to the threads at regular distances from each other on the whole length of the thread. First the threads from reel 3 are wound off and are passed between tensionlng rollers 5, 6 and passed over a table I on which there. is provided a graduation; finally the threads are drawn below a ruler 8. Ruler B is pressed towards the table by springs (not shown) so that the threads are held flat to the table. The ends of the threads are drawn still further until the dots of all threads coming from reel 3 combine to form a regular or irregular figure which appears at a certain spot, e. g. its edge coincides with one line of the the graduation. Then the ends of the threads are fixed between two gripping rollers I! (only one of which is seen).

Now the threads from reel 4 are drawn off in the way described above, are led under ruler 8, so that the figure formed by the coinciding colour dots on the threads from reel 4 appears on the same level as, or in staggered position to, the figure formed on the threads from reel 3, as predetermined by the outlay of the pattern. In this way the requisite number of groups of dot carrying threads are arranged and fixed with their ends between the gripping rollers.

Those portions of the threads which have passed the gripping rollers are spooled onto a common reel for storing and transporting. Now all these thread groups on reel 60 can be conveyed to the warp beam of any loom and wound on it without further adjusting and without disturbing their position and order. Or, they may be introduced directly into the warp at predetermined distances from each other. The space between them is filled by plain warp threads from the warp beam or by similarly prepared threads, the figures formed by the dots of which appear also on the fabric. Since all dots appear on the threads at regular intervals, the figures formed asaaere by them appear at corresponding intervals, one behind the other. The threads drawn from the reels 3, 4 may, alternatively, be plain threads, and may be imprinted during their travel across table 1. Instead of reel 60 a plurality of reels may be provided, each for one thread group. The reels may be mounted on a common shaft slidable, but not tumable, for common rotation with the shaft. For weaving purposes, the shaft may be fixed to the loom parallel to the warp beam, and the individual reels so distributed along the shaft as the position of the respective threads within the warp according to the layout may require.

Fig. 3 shows an alternative possibility of bringing the figures formed by the dots to their desired position in the warp. Here the thread groups, already imprinted, and the dots on the individual threads aligned as described, are not immediately put on a common reel or on the warp beam. Each group is wound on an individual reel and when it is desired to use them, all reels are slid on a common axle ll fixed to the loom, where they are adjustably fixed by means of shackles 20, and are adjusted in relation to each other by individually turning the single reel before fixing it by the shackles for common rotation with axle ll. Ruler l8, l9 provided on the loom across which the strands are led from the reels 16 to the reed, serve for adjusting the figures formed by the different thread groups in the desired position, 1. e. in line or staggered.

The threads from reel l6 are passed through the reed in their respective order together with the plain threads coming from the warp beam, thus forming part of the warp, and weaving can be performed in the ordinary way.

According to Fig. 4, the imprinted thread groups are assumed to have been wound after having been adjusted on a beam 23, the plain threads coming from warp beam 23. From beam 23 each group is passed over a roller 22, which for achieving the coincidence of the figures on the different groups of threads can, individually, be adjusted linearly by being shifted nearer to or farther away from a lease rod 24, each of said rollers being fixed to a screw-threadedarm 25 movable in a nut 26 fixed to the loom.

When leading the threads from the beam 23' into the warp, they are obviously spaced in a fanlike manner if beam 23' is shorter than the width of the warp. This arrangement is shown in Fig. 6. It would result in a distortion of the pattern in the fabric. This can be obviated by leading the threads from beam 23' over paths which are equal in length, no matter what the shortest distance between beam 23' and the reed 6| for each of the threads may be. A simple means for obtaining this adjustment is leading the threads over differently curved guides.

According to Fig. 5 reels 5| carrying the threads provided with colour dots or the like are placed on a common axle 52 on which they are freely and independently turnable. The threads are led through guides 53 over a common roller 55, pressed onto said roller by press-rollers 54 and then led over a further roller 56 to the heald where they pass together with the other warp threads 59 coming from warp beam 51.

The arrangement works as follows: The dotted threads are drawn from their reels and led over roll 55 one beside the other to such an extent that the colour dots or knops on the different threads have the desired relation to each other across the whole length of the roller.

This will be achieved, say, by means of a ruler or the like as already described, placed on top of roller 55 or the ruler may be placed in front of reed 59. The threads thus having been arranged are pressed down by roller 54. Roller 55 is driven with a velocity synchronized to that of the warp and a steady and equal delivery of the fancy threads to the loom is thereby performed, maintaining at the same time the relative position of the dots and thereby the pattern within the fabric. The reels will obviously not rotate with equal velocity, their turning movement being dependent on the thickness oi the layer of threads spooled on them.

What I claim is:

A method of producing patterned webs comprising the steps of providing threads destined to serve as warp threads with marks at regular distances, winding the differently patterned threads on different reels, arranging the threads carrying said marks in parallel and spaced from each other within the warp so that the individual marks are correlated according to a previously conceived layout, and fixing the reels on a common shaft in the desired relation to each other, and finally introducing the so prepared warp into the loom.

HENRY FIDERER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 556,172 Baker Mar. 10, 1896 557,468 Woodman Mar. 31, 1896 1,718,273 Baylis June 25, 1929 1,795,770 Fromuth Mar. 10, 1931 2,058,948 Biumenthal Oct. 27, 1936 2,194,271 Adams Mar. 19, 1940 FOREIGN PATENTS Number Country Date 119,340 Germany Apr. 24, 1901 

